Changelog for rust-maybe-uninit-devel-2.0.0-4.fc31.21.noarch.rpm :

* Wed Jul 29 2020 Fedora Release Engineering - 2.0.0-2- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
* Thu Feb 20 2020 Josh Stone - 2.0.0-1- Initial package